The diffusion of indium and gallium in polycrystalline thin film Cu(In,Ga)Se2 layers has been investigated. Bilayer structures of CuInSe2 on top of CuGaSe2 and vice versa have been fabricated in both a Cu-rich and Cu-poor process (in relation to the ideal stoichiometry). In each process molybdenum coated soda-lime glass with and without a sodium barrier was used. These bilayers were analyzed wi...

nt matter & 2011 n.2011.10.002 thor. Tel.: +852 23 [email protected] (Z. Abstract Nanomaterials and nanostructures hold promising potency to enhance the performance of solar cells by improving both light trapping and photo-carrier collection. Meanwhile these new materials and structures can be fabricated in a low-cost fashion, enabling cost-effective production of photovoltaics. In this review, we s...

The effect of a secondary copper selenide phase that appears during epitaxial growth of CuInSe2 (CIS) films on (1 0 0) GaAs substrates was investigated. CIS films with different copper to indium molar ratios were deposited on (1 0 0) GaAs substrates at 360 1C by migration-enhanced epitaxy. Films grown under In-rich conditions were polycrystalline, whereas films grown with a Cu-rich composition ...

1. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany 2. Freie Universitaet Berlin, Institute of Geological Sciences, Malteserstr. 74-100, 12249 Berlin, Germany 3. Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K. 4. European Synchrotron Radiation Facility, BP 220, Grenoble Cedex, France 5. Federal Institute for M...